Files
ui-library-playground/Core/Src/graphics/menu.c
Dylan Smith 6cdbe8cb11 WIP
2026-01-12 16:26:40 -05:00

95 lines
3.3 KiB
C

#include "menu.h"
#include "graphics.h"
#include "fonts/font.h"
#include "display.h"
static uint8_t selected_entry_idx = 0;
void draw_menu(const graphical_menu_t *const menu)
{
const uint16_t entry_height = 40;
const uint16_t padding_x = 10;
const uint16_t padding_y = 0;
const pixel_t enabled_text_color = MAKE_PIXEL(31, 63, 31); // White text
const pixel_t disabled_text_color = MAKE_PIXEL(15, 31, 15); // Gray text for disabled
const pixel_t entry_bg_color = MAKE_PIXEL(15, 15, 15); // Slightly darker for entry background
const pixel_t highlighted_bg_color = MAKE_PIXEL(0, 31, 63); // Blue background for highlighted entry
const pixel_t highlighted_text_color = MAKE_PIXEL(31, 63, 31); // White text for highlighted entry
// Ensure selected_entry_idx is within bounds
if (selected_entry_idx >= menu->num_entries)
{
selected_entry_idx = 0;
}
for (uint8_t i = 0; i < menu->num_entries; i++)
{
const uint16_t y_pos = i * entry_height;
const graphical_menu_entry_t *entry = &menu->entries[i];
const bool is_highlighted = (i == selected_entry_idx) && entry->enabled;
// Draw entry background - use highlighted color if this is the selected entry
pixel_t bg_color = is_highlighted ? highlighted_bg_color : entry_bg_color;
DrawBox(0, y_pos, DISPLAY_WIDTH, entry_height, bg_color);
// Draw entry text - use highlighted color if selected, otherwise use enabled/disabled color
pixel_t text_color;
if (is_highlighted)
{
text_color = highlighted_text_color;
}
else
{
text_color = entry->enabled ? enabled_text_color : disabled_text_color;
}
// Calculate baseline from top position: baseline = top + (line_height - base_line)
const uint16_t text_baseline_y = y_pos + padding_y + (roboto_bold_font.line_height - roboto_bold_font.base_line);
draw_string((pixel_t *)framebuffer, &roboto_bold_font,
padding_x, text_baseline_y,
entry->title, text_color);
}
}
void select_menu_entry(const graphical_menu_t *const menu)
{
// Ensure selected_entry_idx is within bounds
if (selected_entry_idx >= menu->num_entries)
{
return;
}
const graphical_menu_entry_t *entry = &menu->entries[selected_entry_idx];
// Only select if the entry is enabled
if (entry->enabled && entry->selected_callback_function != NULL)
{
entry->selected_callback_function(entry->selected_callback_function_args);
}
}
uint8_t get_selected_menu_entry_idx(void)
{
return selected_entry_idx;
}
void set_selected_menu_entry_idx(const graphical_menu_t *const menu, uint8_t idx)
{
// Clamp the index to valid range
if (idx >= menu->num_entries)
{
idx = menu->num_entries > 0 ? menu->num_entries - 1 : 0;
}
// Only allow selecting enabled entries
if (menu->entries[idx].enabled)
{
selected_entry_idx = idx;
// Call highlighted callback if it exists
if (menu->entries[idx].highlighted_callback_function != NULL)
{
menu->entries[idx].highlighted_callback_function(menu->entries[idx].highlighted_callback_function_args);
}
}
}